Shortest path bridging: Efficient control of larger ethernet networks

Allan, David; Ashwood-Smith, Peter; Bragg, Nigel; Farkas, János; Fedyk, Don; Ouellete, M; Seaman, Matthew N.; Unbehagen, Paul

doi:10.1109/mcom.2010.5594687

Cited by 43 publications

(19 citation statements)

References 1 publication

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“…6. Hierarchical topology from [8] It is similar to the one used in [8] that allows us to directly compare the amount of paths obtained with our approach with the results of an ECMP solution like shortest path bridging [8]. We implemented the architecture with two different control planes: one using a simple shortest path algorithm to obtain ECMP paths and the other using our policy-based non-ECMP approach.…”

Section: Resultsmentioning

confidence: 99%

“…Two standards have emerged to address the STP limitations in L2 fabrics: TRILL [7] and shortest path bridging [8]. They have slightly different approaches (see [3]), but they both rely on encapsulation (MAC-in-MAC) for scale and traffic separation and have an ECMP approach based on a traditional shortest-path routing algorithm control plane using the link state algorithm to build the shortest bidirectional paths between bridges.…”

Section: L2 Fabrics For Modern Networkmentioning

confidence: 99%

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An L2 policy based multipath fabric

Amaral

Bernardo

Pinto

et al. 2014

2014 IEEE International Conference on Communications (ICC)

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Ethernet is the Layer 2 infrastructure of choice for modern data center networks and service provider metro networks. These networks need to scale to a high number of end hosts and bridges, provide isolation between tenants and support host mobility with an efficient bandwidth use and reduced operating costs. Ethernet uses controlled flooding of frames and the spanning tree protocol, falling short on demands like scalability and full usage of the topology. Solutions at Layer 3 solve some of the problems but they are harder to configure, more expensive and pose difficulties to host mobility. Recent efforts try to bring some of the advantages of L3 to L2 by using equal cost multipath (ECMP) control planes to populate the bridges forwarding tables. In this paper we go beyond and propose a non-ECMP solution where the paths are selected by policy. This means that very different paths (in terms of the physical topology) can be considered equal. It provides an extra layer of flexibility in traffic distribution with a high utilization of the network in a single L2 Ethernet domain. Our design is based on routing algebra theory and its correct behaviour can be proved for both centralized and distributed implementations.

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Section: Resultsmentioning

confidence: 99%

Section: L2 Fabrics For Modern Networkmentioning

confidence: 99%

An L2 policy based multipath fabric

Amaral

Bernardo

Pinto

et al. 2014

2014 IEEE International Conference on Communications (ICC)

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“…There exist various layer 2 and layer 3 technologies which could achieve the multipath communication such as Transparent Interconnection of Lots of Links (TRILL) [14], link aggregation with link aggregation control protocol (LACP), Shortest Path Bridging (SPB) [15], or Equal Cost Multipath Protocol (ECMP) [16]. However, they are either suitable with a part of SDWAN or one type of the physical deployments.…”

Section: B Requirements For Openflow Channel In Sdwanmentioning

confidence: 99%

A Scalable and Robust OpenFlow Channel for Software Defined Wireless Access Networks

Nguyen

Ishizu

Murakami

et al. 2015

2015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall)

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In recent years, there has been an increasing number of Software Defined Wireless Access Network (SDWAN) proposals aiming to cope with the proliferation of mobile devices, as well as, the novel Quality of Service (QoS) demands. One of the most important issues in the SDWANs is to maintain a scalable and robust OpenFlow channel through which the network control and update information (i.e., OpenFlow traffic) are exchanged. However, the standard channel does not well support those characteristics nor does it properly conform to the SDWAN environment. This paper seeks to remedy these problems by analyzing the requirements of SDWAN's OpenFlow channel. We then propose a novel OpenFlow channel named mOpenFlow, which is not only compatible with the SDWANs but also evolved with the OpenFlow standard. The advantage of mOpenFlow is using multipath communication for conveying OpenFlow traffic. Hence, both the robustness and the achievable throughput of the OpenFlow channel is significantly enhanced (i.e., scalable). Combining with the compatibility requirement, the multipath TCP is adopted in the mOpenFlow's design. We extensively evaluate the channel's performance in SDWANs including emulated SDN devices and a real controller. The results show that mOpenFlow outperforms the standard channel both in terms of robustness and scalability.

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“…In fact, we studied three OTN vendors, each of whom had a different approach. For example, these include Ethernet Provider Backbone Bridging (PBB) [8], Shortest Path Bridging [9], Multi-Protocol Layer Switching-Transport Protocol (MPLS-TP) [10], and Virtual Private LAN Service, (VPLS) [11]. More detailed examinations of these protocols is left as a future work item.…”

Section: Ethernet Enabled Ip Core Architecture (Eeipc)mentioning

confidence: 99%

Evolution of the IP-over-Optical Core network

Zhang

Bathula

Sinha

et al. 2015

2015 11th International Conference on the Design of Reliable Communication Networks (DRCN)

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We explore alternative architectures to reduce cost of IP-over-Optical Core networks. We conducted a detailed cost study of three architectures. We start with a Baseline architecture that captures present mode of operations (PMO) with future traffic projections and utilizes technologies such as Ethernet line-cards (LCs) and OTN sub-wavelength switching. The next architecture, Streamlined, replaces the hub-and-spoke topology of Baseline with a flat topology and is also more judicious in its restoration design. Our detailed study shows significant cost savings for the Streamlined architecture compared to the Baseline. We reduce the cost further in our third proposed architecture: Ethernet Enabled IP core (EEIPC) consisting of OTN switches (with and without packet switching) and without any backbone routers or MPLS switches. Our results also demonstrate that we can achieve significant reduction in switching costs but reducing cost of transport remains a significant challenge.

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Shortest path bridging: Efficient control of larger ethernet networks

Cited by 43 publications

References 1 publication

An L2 policy based multipath fabric

An L2 policy based multipath fabric

A Scalable and Robust OpenFlow Channel for Software Defined Wireless Access Networks

Evolution of the IP-over-Optical Core network

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